Assembling method of flattening-realizable file rack, comprising following steps: gluing; grey board pasting; folding; opening-burying; and forming. File rack assembled from the flattening-realizable file rack assembly method, comprises first single-powder cardboard body, wherein second single-powder cardboard body is formed at left side of the first single-powder cardboard body, third single-powder cardboard body is formed at right side of the first single-powder cardboard body, fifth single-powder cardboard body is vertically formed at top end of the first single-powder cardboard body, fourth single-powder cardboard body is formed at left side of the fifth single-powder cardboard body, and bottom end of the fourth single-powder cardboard body is connected with top end of the second single-powder cardboard body, sixth single-powder cardboard body is formed at right side of the fifth single-powder cardboard body, and bottom of the sixth single-powder cardboard body is connected with top end of the third single-powder cardboard body for forming.

A blank includes a body portion defining a top body end and a bottom body end; and a telescoping panel coupled to the top body end by a top hinge. A box includes a body portion at least partially defining a cavity, the body portion defining a top body end and a bottom body end, the top body end defining an opening to the cavity; and a telescoping panel coupled to the top body end by a top hinge, the telescoping panel configured to selectively reposition about and between a closed configuration wherein the telescoping panel is positioned within the cavity and an open configuration wherein the telescoping panel is positioned external to the cavity.

A shipping box comprises a bottom, side walls, a lid comprising a flap, a sealing element arranged on the flap to seal the lid, and a temporary closure structure arranged on the flap to temporarily close the lid. The shipping box provides a double closure system (sealing and temporary closure) applicable to any type of box, since both sealing and temporary closure systems are positioned in a single flap of the lid.

The invention disclosed herein is an improved panel arrangement for closing a box. The invention includes two sliding panels and two slotted panels, each slotted panel having a first slot and a second slot for receiving a terminal edge of a sliding panel. In some embodiments of the invention, a flap or flaps are present about a perimeter edge of the slots to allow better access to the slots by the terminal edges of the sliding panels.

A box can include a body portion at least partially defining a cavity, the body portion defining a top body end and a bottom body end, the body portion including a plurality of panels, the top body end defining an opening to the cavity; a telescoping panel including an upper telescoping subpanel and a lower telescoping subpanel, the lower telescoping subpanel coupled to the body portion by a top hinge, the upper telescoping subpanel coupled to the lower telescoping subpanel by a telescoping hinge, the lower telescoping subpanel extending into the cavity and positioned in facing engagement with a first panel of the plurality of panels, the upper telescoping subpanel extending across the cavity from the first panel to a second panel of the plurality of panels, the second panel positioned opposite from the first panel; and a bottom portion coupled to the bottom body end by a bottom hinge.

An expansion devise includes an unexpended slit sheet roll that is wound on a paper core that is wider than the slit sheet paper. The paper core is placed into a yoke that holds the paper in position on each side of the unexpended slit sheet material. An adjustable downward pressure is exerted on the paper core and the paper core exerts pressure on the yoke. As the paper is pulled, this downward pressure creates the friction required to enable the unexpended slit sheet to be unwind and fed while simultaneously expanding. A blank sheet is formed into a box that stabilizes slit paper sheet wound around a core member.

Aspects of the invention are directed toward a carrier (90) for containing a product. The carrier comprises first, second and third connected side panels (16a/16b, 116a/116b, 216a/216b, 316a/316b; 14, 114, 214, 314; 12, 112, 212, 312) which define a three-sided tubular structure having a triangular cross-section. The carrier has a substantially triangular-shaped, crash-bottom-style, bottom wall. Parts (24b/26b, 20b/32, 22b; 124b/126b, 120b/132, 122b; 224b/226b, 220b/232, 222b; 324b/326b, 320b/332, 322b) of the bottom wall are coupled to the first, second and third side panels. The carrier has a mechanical interlocking feature (T1, T2, S1, S2); and a multi-part mechanical locking mechanism. A first top-end closure panel (16a/16b 116a/116b; 215a/215b; 315a/315b) comprises a first part (A1) of said multi-part mechanical locking mechanism. A second top-end closure panel (20a; 120a; 220a; 320a) and a first handle panel (34; 134; 234; 334) coupled thereto, comprise a second part (N2; 334) of the multi-part mechanical locking mechanism; and a third top end closure panel (22a; 122a; 222a; 322a) and a second handle panel (36; 136; 236; 336) coupled thereto, comprise a third part (N1; 336) of said multi-part mechanical locking mechanism.

A tamper-evident coupling system includes a first base portion, a second base portion, a first coupling portion supported by and extending from the first base portion, and a second coupling portion supported by the second base portion and configured for cooperating with the first coupling portion. The first and the second coupling portions are configured for defining an arming condition in which the first and second coupling portions are stably engaged with each other. At least one of the first and the second coupling portions includes a removable portion that is separable from the tamper-evident coupling system upon a first disengagement of the first and second coupling portions following the arming condition to prevent a subsequent coupling between the first and second coupling portions and to show a tampering with the tamper-evident coupling system.

An expansion devise includes an unexpanded slit sheet roll that is wound on a paper core that is wider than the slit sheet paper. The paper core is placed into a yoke that holds the paper in position on each side of the unexpanded slit sheet material. An adjustable downward pressure is exerted on the paper core and the paper core exerts pressure on the yoke. As the paper is pulled, this downward pressure creates the friction required to enable the unexpanded slit sheet to be unwind and fed while simultaneously expanding. A blank sheet is formed into a box that stabilizes slit paper sheet wound around a core member.

The present disclosure relates to a tamper-evident and child-proof coupling system. The coupling system includes a first base portion, a second base portion, a slit, and a closing septum. The first base portion includes a first coupling portion. The second base portion includes a second coupling portion. The first and second coupling portions are configured to define a priming configuration of the coupling system when the first and second coupling portion are engaged to each other. The slit is defined on the first base portion or the second base portion and is configured to receive an opening device. The opening device is configured to disengage the first and second coupling portions. The closing septum is adjustable to a first or second configuration. In the first configuration, the closing septum occludes the slit. In the second configuration, the closing septum is configured to expose the slit.